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Finding the Fourth Proportional to 97,720.60, 146,580.90 and 51,064.60

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Solution

The fourth proportional to 97,720.60, 146,580.90 and 51,064.60 is: 76,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,720.60 : 146,580.90 = 51,064.60 : x
  2. Step 2: Convert to fraction form
    97,720.60/146,580.90 = 51,064.60/x
  3. Step 3: Cross multiply
    97,720.60x = 146,580.90 × 51,064.60
  4. Step 4: Simplify right side
    97,720.60x = 7,485,095,026.14
  5. Step 5: Solve for x
    x = 7,485,095,026.14/97,720.60
  6. Step 6: Final answer
    x = 76,596.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.